Blind-fastener



(No Model.) L. W. HAMMUND.

BLIND FASTENER. No. 470.162. Patented Mar. 1, 1892.

UNITED STATES PATENT OEEIcE.

LEANDER W. HAMMOND, OF NORTH PLAINFIELD, NEW JERSEY.

BLIND-FASTEN ER.

SPECIFICATION forming part of Letters Patent No, 470,162, dated March1892.

Application filed December 11, 1891. Serial No. 414,691. (No model.)

I To all whom it may concern.-

Be it known that I, LEANDER W. HAMMOND, a citizen of the United States,residing at North Plainfield, in the county of Somerset and State of NewJersey, have invented certain new and useful Improvements in Blind-Fasteners; and I do hereby declare the following to beafull, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in window-blind fasteners; and itconsists in the novel construction, arrangement, and combination ofparts whereby a blind is prevented from being opened from Without andnot opened at all without first raising the window-sash, all as will behereinafter more fully explained.

The annexed drawing, to which reference is made, fully illustrates myinvention, in which the figure represents a vertical sectional view of aWindow and blind, being the lower part thereof, showing my improvementapplied thereto.

Referring by letter to the accompanying drawing, A represents the sillof the windowframe, Bindicates the sash, and Cdesignates the blind, allof the well-known construction.

D represents the fastener, which is secured at its middle portion to thesill. A staple a spans the fastener, and has its bearing in a cut-awayportion I), thus preventing the fastener from endwise movement, at thesame time permits said fastener to have a rocking Vertical movement, theunder edge of said fastener being slanted or beveled from front of thesash and beneath the same, thus when the blind is closed and the sash'islowered the hooked end of the lever firmly engages the plate on saidblind, while said sash secures the opposite end of said lever, and inorder to open the.blind the sash must be first raised and the hooked endmade to disengage the plate on the blind. A spring h between the silland the lever serves to hold the hooked end in engagement with saidplate. Thus itwill be seen that to open the shutter the sash must befirst raised, and a person onthe outside of said shutter cannot open thelatter. It must be accomplished from the inside, and it is simple inoperation, durable, and cheap to manufacture.

What I claim is- The combination,with the springh and plate f, of thelever constructed with the depression or cut-away portion b at itscenter, and tapering therefrom to each end thereof, one end having thehook and the other end plain, and the staple a, said cut-awayportionadapted to receive the staple, whereby a fulcrum is provided for saidlever, all as shown and described.

In testimony whereof I aflix my signature in presence of two witnesses.LEANDER WV. HAMMOND.

Witnesses:

JOHN J. HEIDELOFF, WILLIAM H. POPE.

